Led integrated circuit: -XPE, 3 W LED integrated circuitPower LED: 3 WPower supply: built-in 800 mAh lithium ion battery, safe and efficient.Lumens: 300 lumensColor temperature of: 6000 kLighting mode: highlight-low bright-flickerBattery: built-in rechargeable lithium ion lithium polymer battery (800 mAH, 3.7 V)Material: PC lampshade + ABS lamp coversSize:.6 * 2.9 * 2.2 cmApplicable vehicle tube diameter: 20-40mmCarging time: 3 hours from USBDischarge time: highlight 3 hours, low light 5 hours, glossy 12 hoursThank You for Your Support to Our Store. I wish you and your family good health and safe. Look forward to your visit again.If you have any questions, please contact us in time, we will answer your inquiry within 24 hours.